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    31.
    发明专利
    未知

    公开(公告)号：NO900642L

    公开(公告)日：1990-08-13

    申请号：NO900642

    申请日：1990-02-09

    Applicant: HOECHST AG

    Inventor： BATHELT HEINRICH ,  FISCHER REINHARD ,  SCHNEIDER GERHART

    IPC: C09K8/584 ,  C09K23/16 ,  C09K23/22 ,  C09K23/42 ,  E21B43/22 ,  E21B43/25 ,  B01F17/42

    Abstract: In the process described, the oil/gas-containing subterranean formations are contacted with a selected fluoro-surfactant as a stimulant. A particularly preferred stimulant consists essentially of the said fluoro-surfactants and of non-fluorinated, nonionic surfactants from the group of the alkoxypolyethylene glycol ethers and from the group of the alkylphenoxypolyethylene glycol ethers, the three components being present in a weight ratio of preferably about 1:1:1.

    34.
    发明专利
    未知

    公开(公告)号：NO874426L

    公开(公告)日：1988-04-25

    申请号：NO874426

    申请日：1987-10-23

    Applicant: HOECHST AG

    Inventor： SCHMIDT MANFRED ,  RUPP WALTER ,  SCHNEIDER GERHART ,  KOHN EVA M

    IPC: C07C309/04 ,  C07C309/09 ,  C09K8/584 ,  E21B43/22 ,  C07C ,  E21B43/00

    Abstract: Styrylaryloxy ether sulfonates of the formula in which either R1 denotes styryl and simultaneously R2 and R3 are identical or different and denote hydrogen or styryl, or R1 and R2 are nonidentical and each denote methyl or styryl and simultaneously R3 denotes hydrogen or styryl, x denotes a number from 2 to 20, and M denotes an ammonium or alkali metal cation. These compounds are suitable as surfactant auxiliaries in oil recovery.

    ANTI-MICROBIALLY ACTIVE SURFACE-ACTIVE AGENTS
    37.
    发明专利
    ANTI-MICROBIALLY ACTIVE SURFACE-ACTIVE AGENTS 未知

    公开(公告)号：CA1032176A

    公开(公告)日：1978-05-30

    申请号：CA213848

    申请日：1974-11-15

    Applicant: HOECHST AG

    Inventor： DIERY HELMUT ,  SCHRINNER ELMAR ,  GUENTHER KURD ,  SCHNEIDER GERHART

    IPC: C07C67/00 ,  C07C209/00 ,  C07C209/60 ,  C07C211/14 ,  C11D1/88 ,  C11D3/48 ,  C07C103/18

    Abstract: 1484918 Detergent compositions HOECHST AG 15 Nov 1974 [16 Nov 1973] 49538/74 Heading C5D [Also in Division C2] Anionio cationic and/or non-ionic detergent compositions contain as an anti-microbial agent a compound of formula in which one or two of the radicals R 1 to R 7 represent a C 8-18 alkyl or alkenyl radical, one or two of the radicals R 2 -R 6 represent a radical of formula wherein Y is a hydrogen or alkali metal atom, each of the remaining radicals R 1 to R 7 represent a hydrogen atom or a methyl group, n is 2 or 3 and o and p are zero or 1. The compositions may also contain optical brightening agents, perborates, enzymes, perfumes, fluorescence agents, foam-producing and foam-depressing agents, and deposit-preventing auxiliaries. Examples disclose compositions containing antimicrobial compounds as above together with (3) the sodium salt of a secondary alkane sulphonic acid (or the sodium salt of dodecylbenzene sulphonic acid or a mixture of the former with the sodium salt of a C 15-18 olefin sulphonate), oxyethylated tallow fatty alcohol, sodium soap, sodium tripolyphosphate, sodium metasilicate, magnesium silicate, carboxymethyl cellulose, optical brightener, perfume oil and sodium perborate, (4) oxyethylated coco fatty acid, oxyethylated isotridecyl alcohol, sodium tripolyphosphate, sodium silicate, calcined sodium carbonate, carboxymethyl cellulose and sodium sulphate, (5) distearyl-dimethylammonium chloride, oxyethylated oleyl alcohol, an optical brightener and perfume oil, (6) oxyethylated coco fatty alcohol, perfume and dyestuffs, (7) oxyethylated coco fatty alcohol, sodium tripolyphosphate, sodium silicate, calcined sodium carbonate, carboxymethyl cellulose and sodium sulphate.

    ANTI-MICROBIALLY ACTIVE SURFACE-ACTIVE COMPOUNDS
    38.
    发明专利
    ANTI-MICROBIALLY ACTIVE SURFACE-ACTIVE COMPOUNDS 未知

    公开(公告)号：CA975004A

    公开(公告)日：1975-09-23

    申请号：CA136166

    申请日：1972-03-03

    Applicant: HOECHST AG

    Inventor： DIERY HELMUT ,  BUECKING HANS-WALTER ,  SEEGER KARL ,  SCHNEIDER GERHART

    IPC: C11D1/88

    Abstract: 1384091 N-Substituted diamine-maleic acid semi-amide adducts HOECHST AG 3 March 1972 [5 March 1971] 9989/72 Heading C2C [Also in Division C5] Anti-microbially active compounds having surface-active properties are of formula in which R 1 is C 8-18 alkyl or alkenyl, x is 2 or 3, and R 2 and R 3 are (where Y is H or an alkali metal) or one of R 2 and R 3 may be hydrogen, or are in the form of the corresponding betaine, and are prepared by reacting one or more compounds with maleic acid semi-amide or a salt thereof in an aqueous or aqueous alcoholic medium. Use of the ammonium salt gives the compounds in betaine form. Alkali metal salt products can be converted to the betaine form by treatment with an acid to a suitable pH. The ammonium salt of maleic acid semiamide is prepared from maleic anhydride and gaseous NH 3 in chloroform.

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